Coiler head mechanism



Feb. 1, 1955 B. ROBINSON 2,700,797

COILER HEAD MECHANISM Filed April 26. 1954 6 INVENTOR: 65 ELVIN BRoBmsoN ii gagww ATTORNEYS United States Patent 9 M COILER HEAD MECHANISM Elvin B. Robinson, Gastonia, N. C., assignor to Ideal Industries, Inc., Bessemer City, N. C., a corporation of North Carolina Application April 26, 1954, Serial No. 425,499

9 Claims. (Cl. 19-.159)

This invention relates to an improved coiler head mechanism for drawing frames, carding machines and, in fact, all types of machines where a coiler mechanism is employed.

Heretofore, the coiling mechanism, which is disposed above a can and operates to deposit the sliver in pile formation in the can, has been mounted on a suitable stationary plate having a circular opening therethrough into which a portion of the coiler head would fit. The plate also had a circular groove or race disposed a short distance away from the opening and a plate portion of the coiler head had a downturned portion which would rotate in the circular groove and would be driven by the machine with which it is associated. However, this has resulted in a great amount of friction and the creation of static electricity.

It is an object of this invention to provide a coiler head which is supported for rotation solely by antifriction bearings so it will require much less power to rotate the same and will result in a great saving in wear and tear of the coiler mechanism. By providing a sealed antifriction thrust bearing either of the radial or lateral thrust type for supporting the rotatable portion of the coiler head mechanism, a great improvement has been made in obviating the necessity of lubricating the groove in the plate in which the circular projection had movement and the rotatable portion of the coiler head mechanism is supported solely by the anti-friction bearing.

Some of the objects of the invention having been stated, other objects will appear as the description proceeds when taken in connection with the accompanying drawings, in which Figure 1 is a vertical sectional view taken through a portion of a drawing frame and the improved coiler head mechanism and the support for the can and showing the can in elevation with the central portion thereof broken away;

Figure 2 is an enlarged fragmentary sectional plan view taken substantially along line 2-2 in Figure 1;

Figure 3 is an enlarged vertical sectional view taken substantially along line 33 in Figure 2.

Referring more specifically to the drawings, the numeral indicates one of the supporting members for the bottom rolls 11 on which top rolls 12 rest and through which a roving or sliver S is drawn and attenuated. The roll support is fixed to a channel-shaped frame 14. The sliver S is drawn through a trumpet 15 mounted in a swingable lever 16 fixed on a shaft 17. The shaft 17 has a finger 18 and a stop motion rod 20 fixed thereon and the trumpet holding member or lever 16 has a projection 22 having a set screw 23 mounted therein which is adapted to engage a stop motion lever 24 also mounted on the shaft 17.

The free end of the stop motion lever 24 has heretofore been pressed against the top portion of a conventional tube gear for driving the coiler mechanism and, when the can has been filled to cause it to press upwardly on the lower portion of the conventional gear, it would elevate the top portion thereof and would pivit the stop motion lever 20 upwardly to stop the machine. Also, it is evident that, when the sliver S parts, the pressure applied by its passing through the trumpet will cease and will allow the member 16 to spring upwardly in the usual manner, thus allowing the stop motion rod 20 to swing downwardly at its left-hand end in Figure 1 to stop the machine.

A conventional drawing frame is also equipped with 2,700,797 Patented Feb. 1, 1955 a driven coiler shaft 29 suitably journaled on a conventional coiler plate 30 supported by the frame 14. The shaft 29 has a bevel gear 31 fixed thereon for each of the coiling mechanisms.

Each bevel gear 31 meshes with a bevel gear 32 integral with a third gear or spur gear 33 which, in turn, meshes with a coiler gear 35 which is integral with or fixed to a circular coiler base 36 to thereby impart rotation to the coiling mechanism. A conventional coiling mechanism also has a suitable can 37 into which the sliver S, after passing through the trumpet 15, is deposited in pile formation.

The can 37 is supported on a suitable rotatable platform or can table 38 which rotates at a much lower number of revolutions per minute than the coiler base 36. The bevel gear 32 and spur gear 33 are mounted on a vertical shaft 40 which on its lower end has a spurgear 41 secured thereon which meshes with a train of gears, not shown, one of which, in turn, meshes with a gear 44 fixed on a shaft 45 integral with the rotatable platform 38 for imparting rotation to the can 37. The shaft 45 is mounted in a suitable concave plate 47.

The parts thus far described are conventional and these parts have een modified in the following manner: The conventional coiler plate 30 has mounted thereon a plurality of studs or screws which slidably penetrate the free ends of spider legs 51 of a coiler mounting bracket or spider 52. A compression spring 53 is disposed between the head of each stud or screw 50 and the ends of the spider legs 51. The spider 52 also comprises a hub portion 54 integral with or fixed to the spider legs 51 and in which is mounted the outer race 55 of an anti-friction bearing which has an inner race 56 with suitable balls 57 disposed between the inner and outer races. The outer race 55 is secured in position in the hub 54 by any suitable means such as a pressed fit and set screws 58.

The coiler base 36 has rising upwardly therefrom a substantially centrally disposed shaft or uprising portion 60 which has a hub portion 61 integral therewith or fixed thereon and the inner race 56 is secured to the periphery iof hub portion 61 by any suitable means such as a pressed it.

The springs 53 are provided to permit upward movement of the coiler head with bracket or spider 52 when the can 37 has been filled and the contents thereof engage and press the coiler base plate 36 upwardly. Since the stop motion lever 24 rests against the hub 54 of spider 52, it is apparent that this Will then stop the machine.

The coiler plate 30 as above briefly described has a circular groove 65 disposed in spaced relation to the opening 66 in the coiler plate 30 and the coiler base 36 has a downturned circular rib 67 which has rotation in the circular groove 65. It is also noted that there is substantial clearance between the circular projection 67 and the groove 65 and also between the lower peripheral portion of the base plate 36 and the inner surface of the opening 66 so that there is no friction whatsoever between the fixed plate 30 and the rotating base plate 36. The hub portion 61 has a suitable pipe or sliver tube 68 secured therein and extending at an angle and passing through the ring gear 35, which is fixed to the rotating base plate 36 and this pipe 68 also passes through the rotating plate. The sliver S passes through this pipe 63 on its way to be coiled into the can 37.

It is thus seen that there has been provided a rotating coiler mechanism which instead of being supported by the circular projection 67 running in groove 65, is supported solely by the sealed anti-friction bearing comprising the outer and inner races 55 and 56 and, thus, friction and the necessity for lubrication is entirely dispensed with.

While the bearing 55, 56 is shown in the form of an anti-friction bearing, which is preferable to give best results, it is to be understood that any suitable type of bearing may be used in association with a support such as the spider 52 for suspending and rotatably supporting the coiler head 35, 36 out of frictional contact with the spectacle or coiler plate 30, thus eliminating the necessity of providing lubrication between the coiler head 35, 36 and the plate 30 which lubrication has heretofore resulted in damage to the stock or sliver being coiled.

In the drawings and specification there has been set forth a preferred embodiment of the invention and, although specific terms are employed they are used in a generic and descriptive sense only and not for purposes of limitation, the scope of the invention being defined in the claims.

I claim:

1. In a coiler mechanism for laying sliver into a can, a coiler plate having an opening therein, a coiler head having a base substantially axially alined with said opening, a substantially centrally disposed reduced uprising portion on said base and a sliver tube extending between the base and the upper end of the uprising portion; the combination of a spider comprising a hub, a plurality of circularly arranged legs extending radially outwardly and downwardly from said hub, means resiliently securing the lower ends of said legs to said coiler plate outwardly of the periphery of said base, an anti-friction bearing fixed on the upper end of said uprising portion, and means securing the anti-friction bearing to said hub.

2. In a coiler mechanism for laying sliver into a can, a coiler plate having an opening therein, a coiler head having a base substantially axially alined with said opening, a substantially centrally disposed reduced uprising portion on said base and a sliver tube extending between the base and the upper end of the uprising portion; the combination of a spider comprising a hub, a plurality of circularly arranged legs extending radially outwardly and downwardly from said hub, means securing the lower ends of said legs to said coiler plate outwardly of the periphery of said base, an anti-friction bearing fixed on the upper end of said uprising portion, and means securing the anti-friction bearing to said hub.

3. In a machine for processing textile fibers in rope form, a stationary substantially horizontal plate carried by said machine and having at least one opening therein, a coiler head having an enlarged lower portion adapted to loosely fit in said opening and also having a substantially centrally disposed relatively small uprising portion and an enlarged upper portion, a spider including a plurality of circularly spaced legs, means securing the legs to the stationary plate adjacent the outer periphery of the enlarged portion, said legs extending upwardly and radially inwardly, a hub connecting the inner ends of said legs and having an opening therein, and an anti-friction bearing disposed between the wall of the opening in said hub and the enlarged upper portion of said coiler head.

4. In a structure according to claim 3, wherein said machine is provided with a stop motion lever and wherein the upper end of the hub is adapted to engage said stop motion lever and wherein a sliver-receiving can is positioned beneath the coiler head; said means securing the legs to the stationary plate including a headed stud loosely penetrating each leg and being fixed to said stationary plate, and a compression spring surrounding each of said studs between the head thereof and the surface of the corresponding leg to thereby permit upward movement of the coiler head with the spider when the can into which the sliver is directed is filled and the sliver therein presses against the lower surface of said enlarged lower portion of the coiler head whereby the coiler head may raise said stop motion lever for stopping the machine.

5. In a coiling mechanism for textile slivers having a stationary plate provided with a substantially circular opening therethrough, a coiler head having a base adapted to fitjn said circular opening and having an uprising substantlally centrally disposed reduced portion thereon and a tube extending from the upper end of the uprising portion and downwardly and outwardly at an angle and through which the sliver may pass; the combination of a bracket carried by said stationary plate and having a portion encircling the upper end of said uprising portion, and an anti-friction bearing comprising inner and outer races and having its inner race fixed on the upper end of said uprising portion and having its outer race fixed in the portion of said bracket encircling the upper end of said uprising portion to thereby rotatably support the coiler head.

6. In a sliver processing machine having a substantially horizontal stationary plate, a coiler head including a base plate loosely disposed in said opening, a gear carried by said base plate, gear means driven by the machine for imparting rotation to the first-named gear and the base plate, and an uprising portion carried by said base plate; the combination of a bracket having its lower portion fixed to said stationary plate adjacent the periphery of said first-named gear, said bracket having a central portion disposed on a higher level than said base plate and provided with a second opening therein encircling the uprising portion of said base plate, and an anti-friction bearing having its outer race fixed in said second opening and having its inner race fixed on said uprising portion of the base plate.

7. In a machine for processing textile fibers in rope form, a stationary substantially horizontal coiler plate having a substantially circular opening therein, a coiler head comprising a substantially circular base adapted to loosely lit in said opening, a substantially centrally disposed, reduced uprising portion on said base, an enlarged circular portion on the upper end of said uprising portion, and an open ended tube connecting the enlarged upper end portion of the coiler head with said base; the combination of an anti-friction bearing, means securing one of the races of said anti-friction bearing to said enlarged portion of the coiler head, a spider having a hub, means securing the outer race of said anti-friction bearing to said hub, a plurality of radially and downwardly extending legs on said hub, and means resiliently securing said legs to the upper surface of said stationary plate.

8. In a coiler mechanism for laying sliver into a can, a coiler plate having an opening therein, a coiler head having a base substantially axially alined with said opening, a substantially centrally disposed reduced uprising portion on said base and a sliver tube extending between the base and the upper end of the uprising portion; the combination of a support member mounted on the coiler plate and extending above the coiler head, a bearing mounted in the support member and having the upper portion of the reduced uprising portion rotatably mounted therein, whereby the coiler head is rotatably suspended out of frictional contact with the coiler plate.

9. In a coiling mechanism having a coiler plate with an opening therein and a coiler head rotatable in said opening, means for rotatably supporting the coiler head out of frictional contact with said coiler plate comprising an upstanding projection on said coiler head, a support mounted above the coiler head, a bearing carried by said support and the upper portion of said projection being rotatably mounted in said bearing.

References Cited in the file of this patent UNITED STATES PATENTS 532,405 Threlfall Jan. 8, 1895 1,005,745 Owen Oct. 10, 1911 1,607,723 Crockett Nov. 23, 1926 2,152,295 Weinberger Mar. 28, 1939 

